A Rewilding is an approach to conservation that allows natural processes to shape the land, rather than managing every detail.
B On one large estate, owners stopped intensive farming and introduced free-roaming cattle, pigs and ponies. Their grazing created a patchwork of grassland and scrub that attracted rare species.
C Within twenty years, the estate became home to nightingales and turtle doves, birds that had become rare nationally. Visitors now come for wildlife safaris, which provide a new source of income.
D Supporters say rewilding can also reduce flooding, because restored wetlands hold water for longer. Beavers, reintroduced in some areas, build dams that slow streams.
E Not everyone is enthusiastic. Some farmers fear that land will be lost to food production, and others worry about predators. Many experts believe rewilding works best alongside farming rather than instead of it.